People who are not married comprise about half of all American adults, yet their lives are vastly under-represented in teaching and research. Here are some articles about that.
Singles Studies: Global Perspectives (my keynote address)
What are college students taught about people who are single?
Make room for singles in teaching and research (with Kay Trimberger and Rachel Moran)
In a college course on great books, students get extra credit for going on a date